Buellia disciformis (Fr.) Mudd f. microspora (Vain.) Zahlbr.

Buellia disciformis (Fr.) Mudd f. microspora (Vain.) Zahlbr.

Syn.: Hafellia disciformis (Fr.) Marbach & H. Mayrhofer var. microspora (Vain.)

Lichenised.

Substrate: bark

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)

Note: morphology and ecology as in the typical form, but ascospores less than 20 µm long; based on a type from Northern Finland; distribution insufficiently known because not always distinguished.

Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; France: Alpes-de-Haute-Provence; Alpes-Maritimes; Vaucluse; Slovenia: Alpine and Pre-Alpine Slovenia;

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